Mr. R. S. Bagnall on new Thysanoplera. 291 



Readily separated from Retithrips aigypticus, Marchal, by 

 its coloration, the long slender antenna 1 , and the shape of 

 joints 3 to 6, and the longer and more slender wings. 

 Dr. Marchal does not describe any special characteristics of 

 the <$ cegypticus. 



Heliothrips indicus, sp. n. 



$ . — Length 1*2 mm. 



In fasciotus, fasciapennis, and j^aseoli group, but readily 

 distinguished by the male characteristics. Type of colora- 

 tion (except wings) and form of antennae as in fasciatus. 

 Maxillary palpi two-segmented. Wings overreaching tip of 

 abdomen ; fore-wings white, tinged with grey at base, second 

 and third fourths wholly grey-brown, decidedly lighter in 

 middle, though the colouring is not broken ; apical fifth 

 grey-brown. Venation as in fasciapennis ; basal vein set 

 with two basal spines and one near fork ; upper vein (fused 

 with costa) with two near fork and two near apex ; lower 

 vein with five or six (usually 2 + 3 + 1) more or less regularly 

 placed spines. . 



<$ . — Length 1*0 mm. 



Ninth tergite with six rather long dorsal spines, one set on 

 each side of the mid-line at a little distance from the post- 

 erior margin, and the other four in a line (but the inner pair 

 set wider apart than the first-named pair) near the posterior 

 margin. Abdominal sternites 3 to 7 with a strongly trans- 

 verse pale area or depression, more or less arcuate, gradually 

 lessening in size from the fourth to the seventh segment, 

 the former being about fifteen and the latter eight times as 

 wide as long. In cinctipennis, Hood, these pale areas are 

 almost round, in fasciatus, Perg., they are transversely ovate, 

 whilst in fasciapennis, Hinds, and phaseoli, Hood, they are 

 transverse, but only five and nine times as long as wide 

 respectively, and not arcuate. 



Hah. India : Sirsiah, Bengal, in numbers on indigo, 190S ; 

 and Surat, Bengal, on onions, berseem, and brinjal, February 

 1909 {Maxwell Lefroy). 



Euthrips (Anapliothrips) alter nans, sp. n. (Maize thrips). 



? . — Length 1*3 to 1*4 mm. 



Head and first two abdominal segments dark grey-brown ; 

 pterothorax yellowish-brown to grey-brown ; abdominal seg- 

 ments 7 to 10 dark chestnut-brown, 6 generally a similar or 

 lighter chestnut-brown ; prothorax, legs, and abdominal 

 segments 3 fo 5 yellow, at most lightly tinged with grey. 



